the execute method of custom geoprocessing tool is not invoked

Discussion created by ohohohoh on Oct 26, 2012
Latest reply on Oct 31, 2012 by nahmed-esristaff
I use Java to create a custom geoprocessing tool and deploy it into ArcGIS 10.0. The user input interface can be showed and no error report. After click "OK", nothing is done. It seems the execute method is not invoked. Any idea about it?